/ Dictionary / Index N nicotinic: Meaning and Definition of Find definitions for: nic•o•tin•ic Pronunciation: (nik"u-tin'ik, -tē'nik), [key] — adj. of, pertaining to, or containing nicotine. related to or imitating the action of nicotine on neurons, esp. in blocking the cholinergic receptors of the autonomic ganglia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nicotine nicotinic acid Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language